[hadoop@datanode3 logs]$ kafka-topics.sh --delete --zookeeper datanode1:2181 --topic firstTopic first is marked for deletion.Note: This will have no impact if delete.topic.enable is not set to true. [hadoop@datanode3 logs]$ kafka-topics.sh --create…
// Add a new ALAssetsGroup to the library. // The name of the ALAssetsGroup is name and the type is ALAssetsGroupAlbum. The editable property of this ALAssetsGroup returns YES. // If name conflicts with another ALAssetsGroup with the same name, then…
[转载] mysql5.6 删除之前的ibdata1文件后再重新生成,遇到[Warning] Info table is not ready to be used. Table 'mysql.slave_master_info' cannot be opened.问题 转载:http://blog.csdn.net/wxc20062006/article/details/17999407 1.在安装mysql 5.6.15时,安装完成后,后台日志报如下警告信息: 2014-01-08 13:47…
我们可以从一个表中复制所有的列插入到另一个已存在的表中: INSERT INTO table2SELECT * FROM table1; 或者我们可以只复制希望的列插入到另一个已存在的表中: INSERT INTO table2(column_name(s))SELECT column_name(s)FROM table1; 1.bin bin目录用来保存项目生成后程序集,它有Debug和Release两个版本,分别对应的文件夹为bin/Debug和bin/Release,…
对于dispatch多个异步操作后的同步方法,以前只看过dispatch_group_async,看看这个方法的说明: * @discussion * Submits a block to a dispatch queue and associates the block with the given * dispatch group. The dispatch group may be used to wait for the completion * of the blocks it ref…